Do I need anything else besides the intake

97StangGT · May 21, 2008

Ok heres the deal about to buy a doorman intake for 100$ what else do i need to put it on the npi heads?

Willis_98GT · May 21, 2008

you'll need pi intake gaskets (99-04) Pi coolant return tube, pi water pump nipple, and some silicone :thumb:

and if you don't to use the coolant tube you can get some 5/8th heater hose like i did.

Grnstang · May 22, 2008

If you're thinking about the doorman intake for our cars, It's not the PI intake....I have it and it's just a replacement with the aluminum crossover. I don't know if they make one for the 99 up cars, but also the gaskets are different than factory. Mine was leaking a while back and I had to special order the freakin gaskets from doorman. If I was you, I'd just get the regular PI with the aluminum crossover. It may save you some future hassle. Doorman is also overpriced in my experience too.

Outlaw97GT · May 22, 2008

Grnstang said:
If you're thinking about the doorman intake for our cars, It's not the PI intake....I have it and it's just a replacement with the aluminum crossover. I don't know if they make one for the 99 up cars, but also the gaskets are different than factory. Mine was leaking a while back and I had to special order the freakin gaskets from doorman. If I was you, I'd just get the regular PI with the aluminum crossover. It may save you some future hassle. Doorman is also overpriced in my experience too.

Yes dorman does make both NPI and PI intakes. If I wasnt on vacation I would get you the part #. I posted a good tread with pics on the dorman intakes about 2 years ago... Ill try and find id it. The good thing about the dorman PI intakes is that it has both sensor holes on the crossover.

95PGTTech · May 22, 2008

I have an aluminum crossover 2001 intake I'll sell you for $100 in great shape I have not been able to unload.
(732) 780 - 0770 is my number, I am not on this forum too often.

Willis_98GT · May 22, 2008

Outlaw97GT said:
Grnstang said:

If you're thinking about the doorman intake for our cars, It's not the PI intake....I have it and it's just a replacement with the aluminum crossover. I don't know if they make one for the 99 up cars, but also the gaskets are different than factory. Mine was leaking a while back and I had to special order the freakin gaskets from doorman. If I was you, I'd just get the regular PI with the aluminum crossover. It may save you some future hassle. Doorman is also overpriced in my experience too.

Click to expand...

Yes dorman does make both NPI and PI intakes. If I wasnt on vacation I would get you the part #. I posted a good tread with pics on the dorman intakes about 2 years ago... Ill try and find id it. The good thing about the dorman PI intakes is that it has both sensor holes on the crossover.

i've got a dorman pi intake.. so you have to get special order gaskets from dorman? factory pi gaskets don't work as well???

Grnstang · May 29, 2008

No the factory PI gaskets will not work with the doorman intake. Doorman's gaskets are separate ring style gaskets which fit around each port. The factory gaskets are a one piece design for each side. And unfortunately, I think you will have to special order them. I had to....I searched for days around town and no-one carried them. Good luck and hope this helps.

Outlaw97GT · May 29, 2008

Well first off its Dorman, not Doorman..... sorry couldnt take it anymore....lol

The o-ring style gaskets they use should last. Ive known people to pull the intake a few times and not replace them.
If you must change them you could just use "The Right Stuff" gasket maker. Its made by permatex, looks like a cheese whiz can.

Dorman part #'s
"PI" 615-175
"NPI" 615-178

:thumb:

Willis_98GT · May 29, 2008

well they told me that pi gaskets wouldn't be necessary and now i'm leaking.. so do you know where those gaskets are online or anything. because if i pull this mainfold apart again i don't wanat to put it back together and do it again.

Outlaw97GT · May 29, 2008

Did you silicone the water ports? Where is it leaking?

Willis_98GT · May 29, 2008

my guess is the rear.. it has a loud air whistle too. everyone asks if i'm supercharged all the time.

Outlaw97GT · May 30, 2008

You need to find out where its leaking. Spray a little wd-40 around there while the engine is running. When the motor rev's thats where its leaking.

Funny thing though, my brother-in-law put on a dorman intake on his 99 GT and it whistles also. Does sound like it is supercharged...lol

But his doesnt leak, just whistles.

Good luck bro, if you need any help let me know.